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.\"     Title: git-pack-refs
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: 07/27/2015
.\"    Manual: Git Manual
.\"    Source: Git 2.5.0
.\"  Language: English
.\"
.TH "GIT\-PACK\-REFS" "1" "07/27/2015" "Git 2\&.5\&.0" "Git Manual"
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.SH "NAME"
git-pack-refs \- Pack heads and tags for efficient repository access
.SH "SYNOPSIS"
.sp
.nf
\fIgit pack\-refs\fR [\-\-all] [\-\-no\-prune]
.fi
.sp
.SH "DESCRIPTION"
.sp
Traditionally, tips of branches and tags (collectively known as \fIrefs\fR) were stored one file per ref in a (sub)directory under $GIT_DIR/refs directory\&. While many branch tips tend to be updated often, most tags and some branch tips are never updated\&. When a repository has hundreds or thousands of tags, this one\-file\-per\-ref format both wastes storage and hurts performance\&.
.sp
This command is used to solve the storage and performance problem by storing the refs in a single file, $GIT_DIR/packed\-refs\&. When a ref is missing from the traditional $GIT_DIR/refs directory hierarchy, it is looked up in this file and used if found\&.
.sp
Subsequent updates to branches always create new files under $GIT_DIR/refs directory hierarchy\&.
.sp
A recommended practice to deal with a repository with too many refs is to pack its refs with \-\-all once, and occasionally run git pack\-refs\&. Tags are by definition stationary and are not expected to change\&. Branch heads will be packed with the initial pack\-refs \-\-all, but only the currently active branch heads will become unpacked, and the next pack\-refs (without \-\-all) will leave them unpacked\&.
.SH "OPTIONS"
.PP
\-\-all
.RS 4
The command by default packs all tags and refs that are already packed, and leaves other refs alone\&. This is because branches are expected to be actively developed and packing their tips does not help performance\&. This option causes branch tips to be packed as well\&. Useful for a repository with many branches of historical interests\&.
.RE
.PP
\-\-no\-prune
.RS 4
The command usually removes loose refs under
$GIT_DIR/refs
hierarchy after packing them\&. This option tells it not to\&.
.RE
.SH "BUGS"
.sp
Older documentation written before the packed\-refs mechanism was introduced may still say things like "\&.git/refs/heads/<branch> file exists" when it means "branch <branch> exists"\&.
.SH "GIT"
.sp
Part of the \fBgit\fR(1) suite
